參數(shù)資料
型號: ADSP-21371KSWZ-2B
廠商: Analog Devices Inc
文件頁數(shù): 36/48頁
文件大?。?/td> 0K
描述: IC DSP 32BIT 266MHZ 208-LQFP
產品培訓模塊: SHARC Processor Overview
標準包裝: 1
系列: SHARC®
類型: 浮點
接口: DAI,DPI
時鐘速率: 266MHz
非易失內存: ROM(512 kB)
芯片上RAM: 128kB
電壓 - 輸入/輸出: 3.30V
電壓 - 核心: 1.20V
工作溫度: 0°C ~ 70°C
安裝類型: 表面貼裝
封裝/外殼: 208-LQFP 裸露焊盤
供應商設備封裝: 208-LQFP-EP(28x28)
包裝: 托盤
ADSP-21371
Universal Asynchronous Receiver-Transmitter
tion of internal UART interrupts and the external data
(UART) Port—Receive and Transmit Timing
operations. These latencies are negligible at the data transmis
sion rates for the UART.
Figure 31 describes UART port receive and transmit operations.
The maximum baud rate is PCLK/16 where PCLK = 1/tPCLK. As
shown in Figure 31 there is some latency between the genera-
Table 39. UART Port
Parameter
Min
Max
Unit
Timing Requirement
tRXD
1
Incoming Data Pulse Width
≥95
ns
Switching Characteristic
tRXD
1
Incoming Data Pulse Width
≥95
ns
1 UART signals RXD and TXD are routed through DPI P14-1 pins using the SRU.
DPI_P14
-1
[RXD]
DATA(5
-8)
INTERNAL
UART RECEIVE
INTERRUPT
UART RECEIVE BIT SET BY DATA STOP;
CLEARED BY FIFO READ
STOP
RECEIVE
DPI_P14
-1
[TXD]
DATA(5
-8)
STOP(1
-2)
INTERNAL
UART TRANSMIT
INTERRUPT
UART TRANSMIT BIT SET BY PROGRAM;
CLEARED BY WRITE TO TRANSMIT
START
TRANSMIT
Figure 31. UART Port—Receive and Transmit Timing
Rev. 0
|
Page 41 of 48
|
June 2007
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